Tension-control indicator



Jan. 26 1926.

C. W. YOUNG TENSION CONTROL INDICATOR 2 Sheets-Sheet 1 Filed Feb. 13,1925 FIG. 1 4

I Qwuenton UkarZea 17 Yuny Jan. 26 1926. 1,570,931

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Patented Jan. 26, 1926.

UNITED STATES CHARLES W. YOUNG. OF KILLINGLY, CONNECTICUT.

TENSION-CONTROL INDICATOR.

Application filed February To all whom it may concern:

Be it known that I, CHARLES W. YOUNG, a citizen of the United States ofAmerica, residing at Killingly, in the county of Windham and State ofConnecticut, have invented certain new and useful Improvements inTension-Control Indicators, of which the following is a specification.

This invention relates to indicators adapted to be placed upon twistersor any-other machines where yarns are twisted from beams upon spools orany other similar devices, so that lf there is too great or too littletension upon the strands of yarn, which are being twisted from the beamor other apparatus upon spools or any similar device, the indicator willregister the fact so that the tension may be regulated properly.

After yarns are spun, they are run upon beams and there may be a largenumber of ends of yarn upon a single beam. These beams may then be putupon twisters and a certain number of ends of single yarn are taken fromthe beam and twisted and wound upon a spool or other similar device, sothat from one beam there may be numerous ends of yarn being unwound atthe same time upon numerous spools or other similar devices. As the beamunwinds, there has to be suflicient checking of its speed, by frictionapplied or otherwise, so that each end will be kept taut as it isunwound; otherwise, the yarn will kink or snarl. I-Iither' to, there hasnever been any process for measuring the tension of the yarn as it is 1being unwound from the beam, and if too great tension is applied, itstretches the yarn so that when it is woven into a fabric or otherwiseused it willbe weak and not of as great strength as it should be. Thisis especially true of yarn which goes into fabrics that are used in themanufacture of automobile tires, as the greatest strength possible isneeded in such fabrics, whether it be a closely woven fabric or the cordfabric, so called. To aid in producing a uniform tension on the ends asthey are unwound from the beam, there has been disclosed in this alication the tension control indicator w ich will indicate any in- 18,1925. Serial No. 9,027.

crease above or decrease below the normal or proper tension, so thatfriction upon the beam may be immediately .lessencd or increased and thetension at once restored to normal. I

Otherobjects and advantages of themvention will be apparent during thecourse of the following description. I

In the accompanying drawings forming a part of this specification and inwhich like numerals are employed to designate like parts throughout thesame,

Figure 1 shows in dotted lines a fragmentary elevational view of atwister or other similar machine, while operatively associated therewithand illustrated in elevation is the complete tension control indicatorembodying this invention,

Figure 2 illustrates in elevation, partly broken away, a tension or rockbar which forms'a part-of the standard type of twister to which thistension control indicator is attached, g a Figure 3 is a fragmentaryelevational view of the tension control indicator,

Figure 4-is a vertical sectional view taken upon line IVIV of Fig. 3,

Figure 5 is a vertical sectional view taken upon line VV of Fig. 4:

Figure 6 is a detail perspective view of the main stand bracket, formina part of the tension control indicator, ancI I Figure 7 is afragmentary perspective view of a tension lever which forms a part ofthe indicator.

In the drawings, wherein for the purpose of illustration is shown apreferred embodiment of this invention, the numeral 5 designates in itsentirety a twister, or other similar machine, which employs a tension orrock bar 6, shown in detail-in Fig. 2.

This tension or rock bar 6 is formed of wood and consists of a hexagonalbody portion 7 and journal portions 8 at the ends thereof. The hexagonalbody portion 7 is provided with a row of wire eyelets 9 which may beprovided in any desired number and spaced any suitable distance and areemployed for having the ends of yarn passed therethrough from a. beam,upon which the yarn is wound, but which is not shown in this case, tothe spools carried by the twister. This tension or rock bar 6 isjournaled in the frame of the twister, shown in dotted lines anddesignated by the numeral 5.

The tension lever 10, shown in detail in Fig. 7', is provided with aclamp structure 11 at one end by means of which the lever may be securedto one end of the tension or rock bar 6 so that rotation of the bar ineither direction will cause similar movement of the tension lever. Thislever is provided with a depending, L-shapedextension 12' havin the footportion 12, as best illustratedinFig. 7.

The extremity of thetension lever 1s: pro vided with an aperture 13. bymeans of which the weight 14 is fastened to the. lever.

Arranged in respect to the twister 5, as best illustrated in Fig. 1, isastand 15 having mounted on the upper end thereof a substantiallyU-shaped main stand bracket 16, as illustrated. This bracket is rovidedwith two pairs alined openings 1 and 18 respectively, as bestillustratedin Fig. 6.

A pinion stud 19isjournal'ed in the openings'l'. and is retained inplace bythe collars 20*." This pinion stud has suitably keyed thereto apinion 21 which meshes with the segmental gear 22 keyed to the rock stud23 journaled in the apertures 18 formed in the main stand bracket 16.This segmental gear 22 is provided with a laterallyproyect-v ing lever'24 which is intended to bear against the upper edge of the foot portion12 of the L-sh'aped extension 12 carriel by the tension lever 10 and tobe moved upwardly when the said lever moves: in a similar manner and tomove downwardly of its own weight.

Suitably mounted upon one end face of the U-shaped. inain stand bracket16; asbythe screws 25, is a dial 26ihaving the scale lines 27 formedthereon with suitable indicia'as sociated tl'ierewith. An" indicatorhand 28 is fastened'--to the end of the pinion stud 19 by means of thescrew 2 9'whicjh' is threaded intothe opening; 30 formed] in; the saidstud.

The operation of this tension control in dicator may be describedasifollowsz- It is to be understood that'the endsjof yarn; the tensionof which this indicator intended to register, are passed thru the wireeyelets 9 in the tension? or rock barb. Any increase or decreaseintension' upon the strands of yarnwill cause the'tension or rock bar 6to rotate in the proper direction, the rotatioircausedi by the increasein tension ipon the yarnbeing in a direction for causing upward'movement of the tension lever 10, while a decrease in tension .upon theyarn en'dswill cause :theitension or rock bar 6 to rotate formovin'g'the tension lever downwardly. It will" now be understood that" anyupward movement of" the tension lever 10 will cause the lever 24 of thesegmental gear 22 to be moved upwardly for causing rotation of thepinion 21 and pinion stud 19 to produce movement of the indicator hand28 in a counter-clockwise direction for producing a notification of theincrease in tension upon the yarn. Any decrease in tension upon the yarnends will permitthe tension lever to move downwardly, due to theexistence of the weight 14, for permitting the lever 24 of the segmentalgear 22 to move downwardly also. This downward movement of the lever 24:will cause the segmental gear 22 to rotate for rotating the pinion 21and pinion stud 1 9 to move the indicator hand 28 toward the scale line27 bearing the indic'ia 1.

It will now be apparent that the slightest change in tension on the yarnends will be."

instantly registered upon the dial 26 by movement of the indicator hand28 and the operator of the twister, or other similar machine with whichthis indicator is associated, may take proper steps for reestablishingthe tension at the desired degree or restore it to normal.

It is to be understood that the form of this invention herewith shownand described is to be taken as a preferred example of the same, andthat various changes in the shape, size, and arrangement of partsmay bere sorted to without departing from the spirit of the invention or thescope of the subjoinedclaims.

Having thus described the invention, I claim 1. Ina twister or the like,the combination with a tension bar, of a tension lever clampedthereupon, said tension lever hav ing a depending extension, anindicator element, and means for operatively connecting the element withsaid depending extension for causing movement of the extension toproduceinovement of the indicator ele ment 2. In" a twister or the like,the combination with a tension" bar, of a tension lever clamped onsaid'bar, a depending L-shaped extension carried by said lever, asupport. a movable'indicator hand carried by said support, and a trainof mechanical elements operatively connecting said indicator hand andthe depending extension for causing movementjof the extension to producemovement'of the indicator hand.

3. In atwister or the like, the combination with a tension bar, of atension lever fastened thereto, a depending; extension carried by thefree end portion of said lever, a stand. a bracket mounted on saidstand, a pair of studs supported by said bracket and adapted to'rotate,an indicator hand carried by one stud, a lever carried by the remainingstud operatively associated with the dependin extension carried by saidtension lever, an means for connecting the studs to cause retation ofthe same in opposite directions, tension bar, a laterally extendinglever carwhereby movement of the tension bar will ried by the bar, anL-shaped extension deoause movement of the indicator hand carpendingfrom the free end of the lever, and 10 ried by one stud. means forcausing the rise of the foot of I 4;. In a twister or the like, theoombinathe extension to move the ointer.

tion with a stand, a dial carried by the stand, In testimony whereof I a2: my signature. and a pointer movable over the dial, of a CHARLES W.YOUNG.

